1 /*-
2 * Copyright (c) 2006 nCircle Network Security, Inc.
3 * Copyright (c) 2007 Robert N. M. Watson
4 * All rights reserved.
5 *
6 * This software was developed by Robert N. M. Watson for the TrustedBSD
7 * Project under contract to nCircle Network Security, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
22 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
24 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 /*
32 * Check that we must either be running as root or the owner of the file in
33 * order to modify permissions on the file.
34 */
35
36 #include <sys/types.h>
37 #include <sys/stat.h>
38
39 #include <err.h>
40 #include <errno.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44
45 #include "main.h"
46
47 static char fpath[1024];
48 static int fpath_initialized;
49
50 int
priv_vfs_chmod_froot_setup(int asroot,int injail,struct test * test)51 priv_vfs_chmod_froot_setup(int asroot, int injail, struct test *test)
52 {
53
54 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_ROOT, GID_WHEEL,
55 0600);
56 fpath_initialized = 1;
57 return (0);
58 }
59
60 int
priv_vfs_chmod_fowner_setup(int asroot,int injail,struct test * test)61 priv_vfs_chmod_fowner_setup(int asroot, int injail, struct test *test)
62 {
63
64 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OWNER,
65 GID_OWNER, 0600);
66 fpath_initialized = 1;
67 return (0);
68 }
69
70 int
priv_vfs_chmod_fother_setup(int asroot,int injail,struct test * test)71 priv_vfs_chmod_fother_setup(int asroot, int injail, struct test *test)
72 {
73
74 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OTHER,
75 GID_OTHER, 0600);
76 fpath_initialized = 1;
77 return (0);
78 }
79
80 void
priv_vfs_chmod_froot(int asroot,int injail,struct test * test)81 priv_vfs_chmod_froot(int asroot, int injail, struct test *test)
82 {
83 int error;
84
85 error = chmod(fpath, 0640);
86 if (asroot && injail)
87 expect("priv_vfs_chmod_froot(asroot, injail)", error, 0, 0);
88 if (asroot && !injail)
89 expect("priv_vfs_chmod_froot(asroot, !injail)", error, 0, 0);
90 if (!asroot && injail)
91 expect("priv_vfs_chmod_froot(!asroot, injail)", error, -1,
92 EPERM);
93 if (!asroot && !injail)
94 expect("priv_vfs_chmod_froot(!asroot, !injail)", error, -1,
95 EPERM);
96 }
97
98 void
priv_vfs_chmod_fowner(int asroot,int injail,struct test * test)99 priv_vfs_chmod_fowner(int asroot, int injail, struct test *test)
100 {
101 int error;
102
103 error = chmod(fpath, 0640);
104 if (asroot && injail)
105 expect("priv_vfs_chmod_fowner(asroot, injail)", error, 0, 0);
106 if (asroot && !injail)
107 expect("priv_vfs_chmod_fowner(asroot, !injail)", error, 0,
108 0);
109 if (!asroot && injail)
110 expect("priv_vfs_chmod_fowner(!asroot, injail)", error, 0,
111 0);
112 if (!asroot && !injail)
113 expect("priv_vfs_chmod_fowner(!asroot, !injail)", error, 0,
114 0);
115 }
116
117 void
priv_vfs_chmod_fother(int asroot,int injail,struct test * test)118 priv_vfs_chmod_fother(int asroot, int injail, struct test *test)
119 {
120 int error;
121
122 error = chmod(fpath, 0640);
123 if (asroot && injail)
124 expect("priv_vfs_chmod_fother(asroot, injail)", error, 0, 0);
125 if (asroot && !injail)
126 expect("priv_vfs_chmod_fother(asroot, !injail)", error, 0,
127 0);
128 if (!asroot && injail)
129 expect("priv_vfs_chmod_fother(!asroot, injail)", error, -1,
130 EPERM);
131 if (!asroot && !injail)
132 expect("priv_vfs_chmod_fother(!asroot, !injail)", error, -1,
133 EPERM);
134 }
135
136 void
priv_vfs_chmod_cleanup(int asroot,int injail,struct test * test)137 priv_vfs_chmod_cleanup(int asroot, int injail, struct test *test)
138 {
139
140 if (fpath_initialized) {
141 (void)unlink(fpath);
142 fpath_initialized = 0;
143 }
144 }
145